Questions about GIMP, the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. Ask scripting questions on Stack Overflow, software support questions on Super User, and anything related to design here ...

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42
votes
2answers
170k views

Making the background of an image transparent in Gimp

I have some jpg images and I need for each of them to have a transparent background. I have GIMP as a graphic tool. I need to put them in a web page and I need to see just the main element and have ...
19
votes
5answers
2k views

What's the most efficient way to “blank” old comic word balloons while retaining paper texture?

I'm taking very old (1940s and '50s) comics and trying to remove the text from some of their word balloons. I don't want to just erase their contents to pure white space, though, as the paper colour ...
19
votes
7answers
25k views

Professionals: Would you choose GIMP over Photoshop and/or Inkscape over Illustrator?

I know Adobe's solutions are more advanced, but, as professionals, do you think you would survive (against competition) using GIMP and/or Inkscape instead of Photoshop and/or Illustrator for your ...
17
votes
9answers
5k views

Is there any way I can add watermark to .jpg files (around 15000), en masse instead of one by one?

I have around 15000 .jpg files that need to be watermarked. Is there any way to process these images en masse to add the watermark?
17
votes
1answer
440 views

How to get standard results in colour management in Linux

I have recently calibrated and profiled my screen, with a ColorHug device. I'm using Gnome, and have the profile installed through gcm. When opening an image in GIMP and DigiKam, the results are ...
13
votes
4answers
46k views

Add transparency to an existing PNG

I'd like to use this image on a web site. What I need to do is change the background from black to transparent, so I can use the arrow on my site maintaining the page background. I used Gimp to ...
13
votes
1answer
11k views

GIMP: Trying to move selected text layer but moves background layer

I have a background overlay that I have three text layers on top. Now I want to move these text layers around on the overlay, but I can't get it to work. As soon as I click inside the text layer I ...
11
votes
11answers
9k views

Should I (a web designer) stick with gimp, or buy Photoshop?

I am a web designer. I do not use/own any adobe products... except for watching flash videos online of course. I currently use gimp 2.6 for my graphic needs. It's free and I know how to use it. The ...
11
votes
2answers
7k views

Why does my transparent PNG not look good?

I want to convert a JPG to transparent and using GIMP I added alpha layers and transparency same way I make a GIF transparent I converted it to PNG but it doesn't display well when I load it on my ...
9
votes
5answers
4k views

Photoshop curved Shadow

How to create the shadow effect as per the url/image below? Specifically, the rounded/curved shadow at the bottom:
8
votes
1answer
532 views

In GIMP, how do I use an image as a color reference to colorize a black-and-white photo?

Let's say I have created a layer on a black-and-white image with a layer mask to colorize some parts (for example skin). I am able to change this with Colorize and change to any color. But how do I ...
8
votes
1answer
4k views

How can I map the colors in a greyscale image to a specific color “gradient”?

Caveat: I'm not a graphic designer and may be misusing some terminology. Please bear with me. :-) I'm attempting to add color to some greyscale icons (i.e. all three channels are identical). I ...
8
votes
2answers
1k views

How do I deal with color spill in chroma key using GIMP?

I'm experimenting with "green screen" techniques to remove the background around a test subject. The test shots were taken in front of a bright green background in moderate to bright lighting ...
7
votes
3answers
4k views

How to convert old scanned documents into black and white

I have some old documents that have been scanned, and I want to convert them to black and white. Content should be always black, and background white: I use Photoshop.
7
votes
1answer
41k views

Make image partially transparent in gimp

I want my image to have 60% transparency. How can I do this in gimp?
7
votes
2answers
16k views

Gimp - Using an image as the transparency layer of another image

I have two images (For the sake of simplicity, Image1 and Image2). I want to use Image2 as a transparency for Image1. How can I do that? Assume I've done little more with Gimp than play with some ...
7
votes
1answer
431 views

How do I fix this photo (poor quality, saturation, color) in GIMP?

I have a photo with poor quality and lighting that needs to go in a print newsletter. There is some lighting issues, and a blue-ish color in part of the image. I'd like to fix the image using GIMP. ...
6
votes
7answers
5k views

GIMP - change color of object preserving feathering

I have an .xcf image and I like to change the color of some objects within it. The objects are mostly one solid color with the edges feathered into transparency. I.e. all pixels in the object are ...
6
votes
4answers
17k views

How do you cut out the centre of an image, bringing the edges closer together?

I need to cut a large number of columns out of a PNG image. The area I want to remove is in the centre of the image; I therefore want the left and right edges to be closer together after the cut. I ...
6
votes
2answers
821 views

Crop a big picture into several small size pictures

Is there a a way with GIMP editor to crop a big picture into several small equal sized pictures? So when all those small pictures connected in order would make a big picture.
6
votes
2answers
3k views

Overlay a graphic on a photo or image

How would I overlay a graphic (a logo in this case) on a t-shirt and make it look like it's really there, not just superimposed (wrinkles, lines, etc?) I don't have photoshop or any adobe software, ...
6
votes
4answers
450 views

Convert image into mask

I have a green background picture with some shadows. I would like to use it as a mask so I can place it on background with any color (e.g. red or pink) and get the same style of shadows. I tried ...
6
votes
1answer
757 views

How to create a saturation map?

Is there an easy way to create a "saturation-map" in Photoshop/Gimp? I need a grey-scale version of an image showing where the colors have less saturation (black) and where they have more saturation ...
6
votes
1answer
186 views

Highlight stray non-background pixels

I am editing an image in GIMP that has a few nearly-transparent (resp. very light) pixels scattered through an otherwise transparent (resp. pure white) background. Is there a command that will ...
5
votes
3answers
627 views

How to add a color gradient to a picture

I felt in love with the way this graphic designer, called Mariusz, has edited this picture. It would be fun to produce something like this for myself. Anyone has some ideas on how to create such a ...
5
votes
8answers
4k views

How can I make a screenshot look like a photograph taken of a real surface? [duplicate]

Possible Duplicate: How to get this blur texture effect in photoshop? I'm starting from a plain old screenshot, and I'd like it rotated in 3d, with more distant parts more blurry. Is there ...
5
votes
5answers
14k views

Replace black background with a transparent background

How can I add transparent background on this image instead of black background, but I also would like to keep the partial transparency effect on some of the particles and particles borders. Could ...
5
votes
3answers
5k views

Cleaning up line art with choppy edges

So, a while back I created this icon from a game, but looking back on it behind a white background instead of an alpha-channel its edges are super choppy in some places while it's smooth in others, ...
5
votes
5answers
7k views

How do I directly set layer positions in Gimp?

I'd like to directly set (i.e. type in actual coordinates of) the position of my layer in the image, like you can with the selection box: (Not the size, but that would also be cool) Is this ...
5
votes
3answers
3k views

How can I create a multi-color blurred background?

I have seen an image with this background. As a newbie I am unable to get this multi colored mixed background. I am able to get just two colors and that too linearly with the Blend Tool. But that ...
5
votes
3answers
6k views

In gimp : how to save the different layers of a design in separate files/images?

I wonder if there's a way in gimp to make the different layers of a design into separate image files without having to save the image each time. I hope this is clear. I use layers also as variations ...
5
votes
1answer
159 views

Where are my pixels?

I have a big image 5100px x 7000px. I have made the background transparent, and I am satisfied with the result: the parts of the image which I wanted to keep are there, and the white background is ...
5
votes
2answers
12k views

How to make an animated gif with a transparent background without overlap?

When I try to make a gif with two frames both of which have a transparent background in GIMP, what happens is that the first frame looks OK, then the second frame appears on top of it, such that you ...
5
votes
1answer
4k views

Creating a shiny black plastic effect

I would like to create a rectangle that looks like it's made from a flat piece of shiny, polished black plastic. The kind of glossy surface that attracts fingerprints on modern electronics products - ...
5
votes
1answer
413 views

GIF with transparency output not as expected in GIMP

I have been trying to create a GIF using a sequence of PNGs within GIMP An example PNG from the sequence shows the correct transparency I want to be shown in the GIF, But when I process the PNG ...
5
votes
1answer
545 views

How do you set the default text size in Gimp 2.8 for Mac OSX Mountain Lion?

I am using Gimp 2.8 for Mac OS X, and I would like to change the default text size from 18 pt to 36 pt, so that I don't have to highlight the text and manually change every time I create a new text ...
5
votes
1answer
1k views

Can you draw a constrained straight line with GIMP's paths tool?

In GIMP, you can (in various modes) draw a constrained straight line which will "snap" the line you're drawing to the nearest 15 degree angle, making it easy to draw lines in a precise direction. For ...
5
votes
1answer
480 views

How to create grid in GIMP (not sure if the filter is good)

I'm a beginner to GIMP, and I'd like to create a grid. I searched Google and all it gave me was to use the Filter > Render > Grid plugin, but for my job all I want to do is something like this: ...
5
votes
1answer
132 views

Batch oilify in GIMP

I'm pretty new to image editing. I want to be able to batch oilify a number of images. However, I can't find a GUI option in GIMP to do this. In the filters menu there is a Batch process.. option, ...
5
votes
2answers
352 views

Speed effect on electrons - 3D

I'm preparing a cover image for a publication for a scientific journal. Instead of being scientifically rigourous, this kind of image could be more artistic and catch the reader's eye while conveying ...
4
votes
3answers
169 views

Should I scale an image first, or index it?

I have an image, it's the Backtrack_5_PitchBlack.jpg found at http://www.backtrack-linux.org/screenshots/, and I'd like to get it down to 640*480 for a Grub4DOS splash screen. Unfortunately, this also ...
4
votes
2answers
1k views

Command line interface-based way to desaturate and posterize an image?

This is by far my most common task, and I'd say I've wasted about 1000 mouse clicks on it in my raster-based program. Because it's so common for me to start off desaturating an image and then ...
4
votes
2answers
119 views

When saving an image as a PNG or JPEG, does photoshop/GIMP only save the top layers or all the data?

I need to send a file to someone but it has sensitive information on it that I would not like to share. I was going to just scan the document and edit out the sensitive information with a layer ...
4
votes
5answers
763 views

Convert foreground motif to degrees of transparency?

I have a 24-bit PNG where the motif is a subtle pattern. The pattern itself is in light greys, i.e. the background color of the PNG is #eee and the pattern is in a range of slightly darker greys. I ...
4
votes
2answers
5k views

Gimp Pasted Layer Move Tool

What I want to do is paste a picture to a new gimp file. I have the background layer and when I paste it puts it into the floating selection like expected. I found that I'm supposed to turn it into a ...
4
votes
1answer
11k views

How to select more layers with GIMP?

For example in Adobe Photoshop I would just shift+click. How do I do that in GIMP?
4
votes
2answers
3k views

In GIMP, how to colorize using a reference color?

I have an image I wish to colorize using a picked color. What is the handiest/easiest way to do this in GIMP? I've tried my best by checking the palette for my picked color's HSV, then using it as ...
4
votes
2answers
4k views

How do I make a 2D texture into a banner/flag that looks like it is folding from a breeze?

I've got a 2D image and I want to transform it into something that looks like a single frame from an animation of that logo on fabric catching just a bit of breeze. I'm not an artist so don't have ...
4
votes
1answer
957 views

Tutorial on how to create a flowing thread

I'm looking for a tutorial to create wavy flowing threads. Like this: I'm open to tutorials in Photoshop, GIMP, or any freeware image manipulation program. We have a copy of PS. I'm not sure if ...
4
votes
2answers
2k views

Is it possible to add a background image to all 'layers' of an animated gif?

I have an animated gif with transparent background, and I want to add a background image to all layers: How can I achieve it without adding it to every layer individually?